This standard specifies the requirements for the mounting and interchangeability of drawbar couplings on the frame (cross member, drawbeam or mounting bracket) of towing vehicles.
This standard is applicable to drawbar couplings intended for connection to drawbar trailers and centre-axle trailers.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 4781 Commercial Road Vehicles—50mm Drawbar Eye—Interchangeability (GB/T 4781-2006, ISO 1102:2001, IDT)
GB/T 15087 Road Vehicles - Drawbar Couplings and Eyes for Hinged Drawbars - Strength Tests (GB/T 15087-2009, ISO 8718:2001, IDT)
ISO 8755 Commercial Road Vehicles—40 mm Drawbar Eye—Interchangeability
ISO 12357-1 Road Vehicles—Drawbar Couplings and Eyes for Rigid Drawbars—Part 1: Strength Tests for General Cargo Centre-Axle Trailers
ISO 12357-2 Road Vehicles—Drawbar Couplings and Eyes for Rigid Drawbars—Part 2: Strength Tests for Special Applications
